1972 f250 4x4 disc brake conversion HELP will this axle work?

i have a 1972? f250 frame that i want to covert to disc brakes it has a closed knuckle dana 44 which from what i have read cant be converted? cheaply
so i have the chance to buy a 1979 bronco d44 with disk brakes with welded spider gears i dont like the welded gears i think its half a$$ed but its cheap i know its the right year but i dont know if the bronco axle is the same width does anybody know if this axle will work Thanks!

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